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HTML

CSS

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
body {
  background-color: #000;
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  overflow: hidden;
}

.animation-container {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 50%;
  overflow: hidden;
  background-color: #000;
}

/* Animação Function */
.function-box {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: linear-gradient(to bottom right, #F0C30F, #66D9EF);
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}
.function-box::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background:  linear-gradient(to top right, rgba(255, 255, 255, 0.2), rgba(255, 255, 255, 0));
  border-radius: 50%;
  opacity: 0;
  animation: radial-expand-out 1s ease infinite alternate; 
}
@keyframes radial-expand-out {
  0% { 
    opacity: 0;
    transform: scale(0);
  }
  100% { 
    opacity: 1;
    transform: scale(1.2);
  }
}
.function-input {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  background: transparent;
  border: none;
  color: #fff;
  font-size: 16px;
  padding: 5px 10px;
  border-radius: 3px;
  user-select: none;
  animation: input-wiggle 1s ease-in-out infinite alternate;
}
@keyframes input-wiggle {
  0%, 100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(2px, 2px);
  }
}